Perhaps you should try some spelling variations:
formation examination » formation eradication, formation determination, recreation examination
examination methods » examination questions
methods role » methods rules, methods remote, methods robert
array string » array strong, arrays strings, array sharing
array arcing » array forming, array probing, array sharing
array fermi » array forming, array format

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: formation examination methods role ((((array string) or (array fermi))) or (array arcing))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: formation examination methods role ((((array string) OR (array fermi))) OR (array arcing)).
• Adding a wildcard symbol may retrieve word variants: formation examination methods role ((((array string) or (array fermi))) or (array arcing))*.